k8s-sec-audit

k8s-sec-audit is a command for Claude Code from HermeticOrmus/LibreSecOps-Claude-Code. It costs 43 tokens per session (1,256 once invoked), scanned A, original, MIT.

A command that performs a structured security audit of a Kubernetes cluster, its configuration files, or deployment templates. Kubernetes is a platform for running containerized applications, while the CIS Kubernetes Benchmark is a security checklist for common cluster settings.

In plain words
What is it for?
Use it to audit live clusters, Kubernetes YAML, Helm charts, Kustomize overlays, managed services, or previous benchmark results, including control-plane and workload security.
Why use it?
It provides a systematic way to find configuration weaknesses before deployment, during reviews, or after an incident.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the kubernetes-security plugin — 2 skills, 2 commands, 2 agents shipped together

Good fit Use it to audit live clusters, Kubernetes YAML, Helm charts, Kustomize overlays, managed services, or previous benchmark results, including control-plane and workload security.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/hermeticormus/libresecops-claude-code/k8s-sec-audit
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/HermeticOrmus/LibreSecOps-Claude-Code

Made for: Claude Code.

Or install kubernetes-security, the plugin that ships this one along with the rest of its 2 skills, 2 commands, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for k8s-sec-audit

README.md
[![agentmods](https://agentmods.dev/badge/commands/hermeticormus/libresecops-claude-code/k8s-sec-audit/github.svg)](https://agentmods.dev/commands/hermeticormus/libresecops-claude-code/k8s-sec-audit)
Your own site
<a href="https://agentmods.dev/commands/hermeticormus/libresecops-claude-code/k8s-sec-audit"><img src="https://agentmods.dev/badge/commands/hermeticormus/libresecops-claude-code/k8s-sec-audit/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for k8s-sec-audit

Your own site · 80×15
<a href="https://agentmods.dev/commands/hermeticormus/libresecops-claude-code/k8s-sec-audit"><img src="https://agentmods.dev/badge/commands/hermeticormus/libresecops-claude-code/k8s-sec-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,256 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.01256
Opus 5.5 $0.00017 $0.00502
Sonnet 5.5 $0.00009 $0.00251
Haiku 4.5 $0.00004 $0.00126

Measured 12d ago against content hash 5703d13b1b92, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

k8s-sec-audit scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Unrestricted tool accesslowExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

- Roles with `create` on `pods` (can run arbitrary code)

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

plugins/kubernetes-security/commands/k8s-sec-audit.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/k8s-sec-audit

Structured audit of Kubernetes cluster security configuration.

Trigger

Use when you need to:

  • Assess the security posture of a Kubernetes cluster
  • Review Kubernetes manifests, Helm charts, or Kustomize overlays before deployment
  • Prepare for a CIS Kubernetes Benchmark assessment
  • Evaluate a managed Kubernetes service (EKS, GKE, AKS) configuration
  • Investigate cluster security after an incident or organizational change

Input

One of:

  • Live cluster: kubectl access (preferably cluster-admin for comprehensive audit, or view-only for least-privilege assessment)
  • Manifests: Kubernetes YAML files, Helm charts, Kustomize overlays
  • kube-bench output: Previous CIS Benchmark scan results
  • Specific scope: Focus area (e.g., "RBAC", "network policies", "workload security")

Process

Phase 1: Control Plane

  1. API server configuration

    • Authentication methods (kubectl cluster-info, OIDC configuration)
    • Anonymous authentication disabled
    • API server accessible from internet? (EKS: --api-server-endpoint-access)
    • Audit logging enabled and configured
  2. Admission controllers

    • Pod Security Admission labels on namespaces (kubectl get ns -o yaml)
    • Additional admission controllers (Gatekeeper, Kyverno, OPA)
    • Webhook configurations (kubectl get validatingwebhookconfigurations)
  3. etcd security

    • Encryption at rest enabled (kubectl get secrets -n kube-system for EncryptionConfiguration)
    • etcd access restricted (self-managed clusters)

Phase 2: RBAC

  1. ClusterRoleBindings

    kubectl get clusterrolebindings -o json | jq '.items[] | select(.roleRef.name == "cluster-admin") | .subjects'
    
    • cluster-admin bindings (should be minimal)
    • System:masters group membership
    • Anonymous user bindings
  2. Dangerous permissions

    • Roles with create on pods (can run arbitrary code)
    • Roles with create on pods/exec (can exec into existing pods)
    • Roles with * on all resources
    • Roles with access to secrets across namespaces
    • Service accounts with excessive permissions

Read the full file on GitHub · 156 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago Changed · +5 lines · +43 tokens per session 5703d13b1b92
  2. 1mo ago First seen · 151 lines · 0 tokens per session scan A a40131e5af29

Subscribe to this mod's changes

k8s-sec-audit is a command published in the GitHub repository HermeticOrmus/LibreSecOps-Claude-Code (4 stars, last pushed 9d ago), licensed MIT. It adds 43 tokens to every session and 1,256 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (unrestricted tool access). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.